Under-dressing: Americans often dress more casually than people do in most other parts of the world. That habit can come off as a sign of disrespect, or even prevent you from being allowed into certain places.

Shoes that are just plain terrible: Nothing screams “tourist” more than a clunky pair of running sneakers paired with jeans in the name of comfort. You don’t need to look like you’re heading to the gym in order to save your feet from walking. This will of course vary from person to person depending on style preference and perhaps medical need — but lightweight shoes with a little bit of support usually go a long way.

Flip-flops: Flip-flops are not shoes. Flip-flops are a travel tool that you should only pack in your beach bag for the walk from the hotel to the sand — or in your suitcase’s laundry compartment for use in grimy hostel or spa showers.

Shorts on the plane: Aren’t people who wear shorts on the plane freezing? Plane cabins are typically chilly, so covering up at least to the shins is a good idea. It might be hot outside the airport, but being comfortable on the plane should take priority, especially for long flights.

Revealing clothing: Women visiting the Middle East are typically expected to be moderately covered, from their knees up to their shoulders. But it’s important to note that there are plenty of countries across the globe that also scrutinize certain types of revealing clothing. Buddhist cultures as well as Buddhist and Hindu temples and Christian churches typically expect women to cover up, and the shorter shorts that are widely accepted in the U.S. might not be a good idea in more traditional and/or religious parts of Europe, South America, Africa and beyond.

Obnoxious T-shirts: It’s a good idea to leave shirts with political slogans, designer logos or even sports team names at home if you don’t want to be approached about them. Arguing about politics and other controversial topics like religion, money and sports rivalries might be more culturally acceptable than you’d think in your destination, and wearing your opinions on your chest could make you a target for those who want to air some grievances.

Over-activewear: Athleisure can be a cool and comfortable way to fly — but suiting up in activewear for a day out on the town can be a good way to be pegged as an ugly American. Leave the hoodie and running shoes in the hotel room and opt instead for classic staples made from high-performance material.

Backpacks: Unless you’re commuting to class or work, there’s no reason any grown adult should be toting around a huge backpack on an average day out. Travel backpacks in particular can get huge and become a hassle for everyone around you, especially if you’re taking busy public transit or heading to a crowded tourist attraction.

01/08

Under-dressing: Americans often dress more casually than people do in most other parts of the world. That habit can come off as a sign of disrespect, or even prevent you from being allowed into certain places.

02/08

Shoes that are just plain terrible: Nothing screams “tourist” more than a clunky pair of running sneakers paired with jeans in the name of comfort. You don’t need to look like you’re heading to the gym in order to save your feet from walking. This will of course vary from person to person depending on style preference and perhaps medical need — but lightweight shoes with a little bit of support usually go a long way.

03/08

Flip-flops: Flip-flops are not shoes. Flip-flops are a travel tool that you should only pack in your beach bag for the walk from the hotel to the sand — or in your suitcase’s laundry compartment for use in grimy hostel or spa showers.

04/08

Shorts on the plane: Aren’t people who wear shorts on the plane freezing? Plane cabins are typically chilly, so covering up at least to the shins is a good idea. It might be hot outside the airport, but being comfortable on the plane should take priority, especially for long flights.

05/08

Revealing clothing: Women visiting the Middle East are typically expected to be moderately covered, from their knees up to their shoulders. But it’s important to note that there are plenty of countries across the globe that also scrutinize certain types of revealing clothing. Buddhist cultures as well as Buddhist and Hindu temples and Christian churches typically expect women to cover up, and the shorter shorts that are widely accepted in the U.S. might not be a good idea in more traditional and/or religious parts of Europe, South America, Africa and beyond.

06/08

Obnoxious T-shirts: It’s a good idea to leave shirts with political slogans, designer logos or even sports team names at home if you don’t want to be approached about them. Arguing about politics and other controversial topics like religion, money and sports rivalries might be more culturally acceptable than you’d think in your destination, and wearing your opinions on your chest could make you a target for those who want to air some grievances.

07/08

Over-activewear: Athleisure can be a cool and comfortable way to fly — but suiting up in activewear for a day out on the town can be a good way to be pegged as an ugly American. Leave the hoodie and running shoes in the hotel room and opt instead for classic staples made from high-performance material.

08/08

Backpacks: Unless you’re commuting to class or work, there’s no reason any grown adult should be toting around a huge backpack on an average day out. Travel backpacks in particular can get huge and become a hassle for everyone around you, especially if you’re taking busy public transit or heading to a crowded tourist attraction.